Dictionary

Cy

CY

calendar year.

cy

cycle; cycles.

-cy

1. a suffix used to form abstract nouns from adjectives with stems in -t, -te, -tic, and esp. -nt (democracy; accuracy; expediency; stagnancy; lunacy), and sometimes used to form action nouns (vacancy; occupancy).
2. a suffix of nouns denoting rank or office, sometimes attached to the stem of a word rather than to the word itself: captaincy; magistracy.